Six-wheel truck



July 14, 1925.

L. RICHARDSON SIX-WHEEL TRUCK Filed Aug. 28, 1924 Patented July 14,1925.

UNITED STATES 1,545,520 r pa'errr- OFFICE.

LAWRENCE RICHARDSON, or CHICAGO, ILLINOIS. I

SIX-WHEEL annex.

Application filed August as, 1924. Serial No. 734,589.

To all whom it may concern: a

a This invention relates to [six-wheel trucks,

and more particularly to cooperative, constructive features of the sideframe members and intermediatejournal box.

One object of the invention is to simplify the journal box ends of theassociated side frame members in a manner to reduce the weight thereofby reducing the weight of at least one aw ofone of said members, andstill provide proper bufling surfaces for the intermediate journal boxand also allow the necessary freedom of movement due to trackirregularities, etc.

Another object is to provide a cooperative arrangement between theintermediate journalbox and side frame members of a six wheel truckwherein the parts cooperate in a manner to meet all requirementsunderservice conditions.

These and other objects are accomplished by means of the arrangementshown on the accompanying sheet of drawings in which,

Figure l is a fragmentary side elevation of a six-wheel truck embodyingmy invention, and

Figure 2 is a similar fragmentary view, a part of one end of one of theside frame members being broken away to. more clearly illustrate thecooperation between the intermediate journal box and the innerends ofthe side frame members.

One embodiment of the invention is illustrated in connection with asix-wheel truck having side frame members 10 and 11 each of whichcarries an associated end journal box 12 and has an opening 13 for thereception of a transverse bolster member 14 and springs 15 upon whichthe bolster members rest. The bolster, which preferably is an integrallyformed one, forms the draft connection between the side frame members 10and 11.

This invention has to do primarily with cooperative constructivefeatures between the intermediate journal box 16 and the inner ends ofthe side frame members 10 and 11. The inner end of the side frame member10 has but a single jaw 17 which furnishes a bufiing face 18 againstwhich the'lefthand side of the journal box 16 may bear. I-Ieretofore,the inner end of one of the, side frame members has been provided withoppositely arranged jaws for embracing the sides and top of the journalbox to hold the latter in proper operative position and to provideoppositely arranged bufling surfaces. In this particular instance, Ipurpose to simplify and lighten the inner end of the'side-frame memberin question by omitting one of the jaws or providing but a single jawagainst which one side of the journal box 16 may buff, However, abuffing surface is provided for the other or righthand side of thejournal box,'as shown in the figures of thedrawinga This buffing surface19 is formed on a slight projection 20 at the inner end of theassociated side frame member 11. It will be noted that the buffingsurface 19'is slightly inclined so that in order for it to becomeeffective for bufling there must be a relative vertical angular movementbetween the side frame member or a relative pivotalmovement of thejournal box about its upperrighthand corner, which is confined by arelatively small toeportion 21. It isseen, therefore, that the journalbox 16 has associated bufiing surfaces 18 and 19 for the opposite sidesthereof formed 011 the associatedside frame members, and at the sametime the use of a plurality of jaws on a single side frame member isobviated, a relatively small toe 21 being substituted for one of thejaws and forming a pivotal point about which the upper righthand cornerof the intermediate journal box 16 may pivot slightly preparatory to therighthand side of the journal box passing into engagement with thebuffing surface 19. The intermediate journal box is carried entirelywithin the side frame member 10 and the other side frame member 11 has aprojecting portion 22 which rides upon the upper wall portion 28 of theside frame member 10 and preferably between the side flanges 24 on theside frame member 10. This arrangement also provides for the necessaryflexibility without cramping of associated parts, to properly compensatefor track irregularities.

I claim 1. In a six-wheel truck, the combination of an intermediatejournal box and a side frame comprising two relatively movable sideframe members, the inner ends of which cooperate to maintain saidjournal box in position, each of said side frame-members having but asingle jaw to provide a buffing face for an associated side of saidjournal box and one only of said side framemembers having a toe portionfor cooperating to confine said journal box in its proper position.

2. In a six-wheel truck, the combination of an intermediate journal box,and a side frame comprising two relatively movable side frame members,the inner ends of which cooperate'to maintain said journal box inposition, each of said side frame members having buta single jaw toprovide a bufling face for an associated Sideof said box, one of saidbufiing faces normally being inclined with respect to the other buffingface to permit relative movement between the side frame members and thejournal box' in accordance with track irregularities.

3; In a six-wheel truck, the combination of an intermediate journal box,and a side frame comprising two relatively movable side frame members,theinner ends of which cooperateto maintain said journal box inposition, each of said side frame members havingbut a single jaw toprovide a buff ng face for an associate side of said box, one of saidbuffing faces normally being inclined with respect to the other buffingface to permit relative movement between the side frame members and thejournal'box in accordance with track irregularities, and one only ofsaid side frame members having a toeportion for cooperating'to confinesaid journal box and about which the journal box may slightly pivotbefore engaging a certain one of said jaw buffing faces.

4. In a six-wheel truck, the combination of an intermediate journal box,and aside frame comprising two relatively movable side frame members,the inner ends of which cooperate to maintain said journal box inposition, one of said side frame members having only a single jawroviding a bufiing face for one side of SiLlCljOUlIlELl box and havingatoe portion for engaging the upper portion of the other sideof saidjournalbox, said other side frame member having but a single buffingface for said other side of said journal box and being inclined topermit a vertical movement of saidjournalbox and inner ends of said sideframe members without cramping any of the associated parts.

5; In a six-wheel truck, the combination ofan intermediate journal box,and a side frame comprising two relatively movable side frame members,the inner ends of which cooperate to maintain said journal box inposition, each of said side frame members having but a single jaw toprovide a buffing face for an associated side of-said box, one of saidbufiing faces normally being spaced wlth respect to the associated sideof the ournal box to permit a relative fulcruming I movement of saidjournal box in accordance with track irregularities.

Signed at Chicago, Illinois, this 22nd day of August, 1924;.

LAWRENCE RICHARDSON.

